A micro-optic module couples a pair of substrates to opposing sides of a fast-axis collimating lens and a beam twister. The arrangement of optical elements is oriented substantially parallel to a neutral plane defined by propagation paths of the light from each emitter of an array of laser emitters. The pair of substrates may have substantially the same coefficient of thermal expansion and coefficient of thermal conductivity, and the micro-optic module may be configured to exhibit symmetry of thermal loading about the neutral plane when the array of laser emitters emits light at an operational power level. The micro-optic module may be coupled with an array of laser emitters, for example a laser diode bar. The module exhibits thermal properties that facilitate a consistently focused light beam with minimal positional drift, which may enable efficient and reliable coupling of the light beam to optical fibers and other high-tolerance applications.